Plümacher or Plumacher is a German surname originating from the ancient word for a plumber or tinsmith. Some notable persons with the surname include:
Christof Plümacher (born 1963), German fine art photographer Eugene Plumacher (1838–1910), German-American diplomat Hetty Plümacher (1919–2005), German operatic singer Luis Plumacher (born 1983), Venezuelan karateka Olga Plümacher (1839–1895), Russian-born Swiss-American philosopher and scholar
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